mirror of
https://github.com/MariaDB/server.git
synced 2025-01-17 20:42:30 +01:00
135 lines
4.3 KiB
Text
135 lines
4.3 KiB
Text
#
|
|
# test of MERGE TABLES
|
|
#
|
|
|
|
drop table if exists t1,t2,t3;
|
|
create table t1 (a int not null primary key auto_increment, message char(20));
|
|
create table t2 (a int not null primary key auto_increment, message char(20));
|
|
INSERT INTO t1 (message) VALUES ("Testing"),("table"),("t1");
|
|
INSERT INTO t2 (message) VALUES ("Testing"),("table"),("t2");
|
|
create table t3 (a int not null, b char(20), key(a)) type=MERGE UNION=(t1,t2);
|
|
select * from t3;
|
|
select * from t3 order by a desc;
|
|
drop table t3;
|
|
insert into t1 select NULL,message from t2;
|
|
insert into t2 select NULL,message from t1;
|
|
insert into t1 select NULL,message from t2;
|
|
insert into t2 select NULL,message from t1;
|
|
insert into t1 select NULL,message from t2;
|
|
insert into t2 select NULL,message from t1;
|
|
insert into t1 select NULL,message from t2;
|
|
insert into t2 select NULL,message from t1;
|
|
insert into t1 select NULL,message from t2;
|
|
insert into t2 select NULL,message from t1;
|
|
insert into t1 select NULL,message from t2;
|
|
create table t3 (a int not null, b char(20), key(a)) type=MERGE UNION=(t1,t2);
|
|
explain select * from t3 where a < 10;
|
|
explain select * from t3 where a > 10 and a < 20;
|
|
select * from t3 where a = 10;
|
|
select * from t3 where a < 10;
|
|
select * from t3 where a > 10 and a < 20;
|
|
explain select a from t3 order by a desc limit 10;
|
|
select a from t3 order by a desc limit 10;
|
|
select a from t3 order by a desc limit 300,10;
|
|
show create table t3;
|
|
|
|
# The following should give errors
|
|
create table t4 (a int not null, b char(10), key(a)) type=MERGE UNION=(t1,t2);
|
|
--error 1016
|
|
select * from t4;
|
|
--error 1212
|
|
create table t5 (a int not null, b char(10), key(a)) type=MERGE UNION=(test.t1,test_2.t2);
|
|
|
|
# Because of windows, it's important that we drop the merge tables first!
|
|
drop table if exists t5,t4,t3,t1,t2;
|
|
|
|
create table t1 (c char(10)) type=myisam;
|
|
create table t2 (c char(10)) type=myisam;
|
|
create table t3 (c char(10)) union=(t1,t2) type=merge;
|
|
insert into t1 (c) values ('test1');
|
|
insert into t1 (c) values ('test1');
|
|
insert into t1 (c) values ('test1');
|
|
insert into t2 (c) values ('test2');
|
|
insert into t2 (c) values ('test2');
|
|
insert into t2 (c) values ('test2');
|
|
select * from t3;
|
|
select * from t3;
|
|
delete from t3 where 1=1;
|
|
select * from t3;
|
|
select * from t1;
|
|
drop table t3,t2,t1;
|
|
|
|
#
|
|
# Test 2
|
|
#
|
|
|
|
CREATE TABLE t1 (incr int not null, othr int not null, primary key(incr));
|
|
CREATE TABLE t2 (incr int not null, othr int not null, primary key(incr));
|
|
CREATE TABLE t3 (incr int not null, othr int not null, primary key(incr))
|
|
TYPE=MERGE UNION=(t1,t2);
|
|
|
|
SELECT * from t3;
|
|
|
|
INSERT INTO t1 VALUES ( 1,10),( 3,53),( 5,21),( 7,12),( 9,17);
|
|
INSERT INTO t2 VALUES ( 2,24),( 4,33),( 6,41),( 8,26),( 0,32);
|
|
INSERT INTO t1 VALUES (11,20),(13,43),(15,11),(17,22),(19,37);
|
|
INSERT INTO t2 VALUES (12,25),(14,31),(16,42),(18,27),(10,30);
|
|
|
|
SELECT * from t3 where incr in (1,2,3,4) order by othr;
|
|
alter table t3 UNION=(t1);
|
|
select count(*) from t3;
|
|
alter table t3 UNION=(t1,t2);
|
|
select count(*) from t3;
|
|
alter table t3 TYPE=MYISAM;
|
|
select count(*) from t3;
|
|
|
|
# Test that ALTER TABLE rembers the old UNION
|
|
|
|
drop table t3;
|
|
CREATE TABLE t3 (incr int not null, othr int not null, primary key(incr))
|
|
TYPE=MERGE UNION=(t1,t2);
|
|
show create table t3;
|
|
alter table t3 drop primary key;
|
|
show create table t3;
|
|
|
|
drop table t3,t2,t1;
|
|
|
|
#
|
|
# Test table without unions
|
|
#
|
|
create table t1 (a int not null) type=merge;
|
|
select * from t1;
|
|
drop table t1;
|
|
|
|
#
|
|
# Bug found by Monty.
|
|
#
|
|
|
|
drop table if exists t3, t2, t1;
|
|
create table t1 (a int not null, b int not null, key(a,b));
|
|
create table t2 (a int not null, b int not null, key(a,b));
|
|
create table t3 (a int not null, b int not null, key(a,b)) TYPE=MERGE UNION=(t1,t2);
|
|
insert into t1 values (1,2),(2,1),(0,0),(4,4),(5,5),(6,6);
|
|
insert into t2 values (1,1),(2,2),(0,0),(4,4),(5,5),(6,6);
|
|
flush tables;
|
|
select * from t3 where a=1 order by b limit 2;
|
|
drop table t3,t1,t2;
|
|
|
|
#
|
|
# temporary merge tables
|
|
#
|
|
drop table if exists t1, t2, t3, t4, t5, t6;
|
|
create table t1 (a int not null);
|
|
create table t2 (a int not null);
|
|
insert into t1 values (1);
|
|
insert into t2 values (2);
|
|
create temporary table t3 (a int not null) TYPE=MERGE UNION=(t1,t2);
|
|
select * from t3;
|
|
create temporary table t4 (a int not null);
|
|
create temporary table t5 (a int not null);
|
|
insert into t4 values (1);
|
|
insert into t5 values (2);
|
|
create temporary table t6 (a int not null) TYPE=MERGE UNION=(t4,t5);
|
|
select * from t6;
|
|
drop table if exists t1, t2, t3, t4, t5, t6;
|
|
|